"Bonnie" suffered a miscarriage and was unable to deliver the non-viable fetus naturally

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“Bonnie,” a 31-year-old female Orangutan, died Thursday following an emergency procedure at Zoo Miami in Florida.

The oldest orangutan at the Miami zoo has died after an emergency surgical procedure following a miscarriage.

Zoo Miami spokesman Ron Magill said in a press release that 31-year-old Bonnie had been pregnant for several months and was scheduled for a full exam with an OB-GYN on Monday. She started experiencing elevated distress Thursday and needed an emergency surgical procedure to remove a full-term, non-viable fetus that she was unable to deliver naturally.